首页
登录
职称英语
In the early 1950s the researchers who produced the first clad glass optical
In the early 1950s the researchers who produced the first clad glass optical
游客
2024-08-14
31
管理
问题
In the early 1950s the researchers who produced the first clad glass optical fibers were not thinking of using them for communications.【C1】H______, fiber optics was already a well-established commercial technology when the famous paper by Kao and Hockham,【C2】______ (claim)the use of low-loss optical fibers for communication, appeared in 1966. The first low-loss silica fiber was described in【C3】______which appeared in October of 1970. The date of this publication is sometimes【C4】______(cite)as the beginning of the era of fiber communication. Although this development did receive【C5】______(consider)attention in the research community at the time, it was far from inevitable that a major industry would evolve.
The technological barriers appeared formidable because there were serious doubts as to 【C6】wh______these fiber components could ever be produced economically enough, but the market potential was very significant.【C7】______(consequence), research and development activity expanded rapidly, and a number of important issues were【C8】re______during the early 1970s. During the middle and late 1970s, the rate of progress towards marketable products accelerated as the emphasis【C9】______(shift)from research to engineering. Fibers with losses【C10】 app______the Rayleigh limit of 2 dB/km at a wavelength of 0. 8 μm were produced.
By 1980 improvement in component performance, cost, and reliability led to major commitments on the part of telephone companies. [br] 【C5】
选项
答案
considerable
解析
此处需要形容词形式修饰名词attention。considerable attention相当多的关注。此句可译为:尽管当时这项技术在研究领域确实引起了极大的关注,但要发展成一个重要产业还相差甚远。
转载请注明原文地址:https://tihaiku.com/zcyy/3719708.html
相关试题推荐
Thefarmproducedmorefoodthan______thoughtpossibleduringWorldWarII.A、eve
WhatdidresearchersatHarvardfindinthestudy?[br][originaltext]Inthiss
WhatdidresearchersatHarvardfindinthestudy?[br][originaltext]Inthiss
Whatisthefindingreportedinthenews?[br][originaltext]16.Researchersha
Whatisthefindingreportedinthenews?[br][originaltext]16.Researchersha
Whatisthefindingreportedinthenews?[br][originaltext]16.Researchersha
Intheearly1950stheresearcherswhoproducedthefirstcladglassoptical
Intheearly1950stheresearcherswhoproducedthefirstcladglassoptical
Intheearly1950stheresearcherswhoproducedthefirstcladglassoptical
Intheearly1950stheresearcherswhoproducedthefirstcladglassoptical
随机试题
Mary:Whatareyouworkingon?Susan:I’mdoingsomeembroidery.Mary:______Su
GETTINGAGRANT Whocangetthismoney?Anyonewhogetsaplaceona
Whilethe1970spoppsychotherapymovementfocusedontheimportanceoflett
Inthisprivateschool,adentist______thepupils’teethtwiceaweek.A、injure
MasstransportationrevisedthesocialandeconomicfabricoftheAmerican
某研究所正在对本地区工资差别问题进行研究,研究中发现以下几种情况:第一,由于产业
喉部外伤的特征性症状是:()A.疼痛 B.声音嘶哑 C.痰中带血 D.
为了防止因蜡型变形而导致铸件变形,在蜡的选择上应该特别注意()A.蜡
如下图所示的时间轴,最有可能的是什么类型的动画?() A.运动动画 B.
(2018年11月)在面试过程中,面试考官应( )。A.多听多说 B.多听少
最新回复
(
0
)